Senior Officers

William is the Director General of the Guernsey Financial Services Commission. He has strong interests in Supervisory Technology, Digital Finance and Green Finance.

Prior to becoming a financial regulator, William worked in the UK Cabinet Office where he helped write "Regulation - Less is More, a report to the Prime Minister". His other publications include: "Freedom for Public Services; "The Costs of Regulation" and "PRISM Explained - Implementing Risk Based Supervision". Earlier in his career, William worked for an international energy firm on three continents, and a US strategy house. He also served as a volunteer police officer in London, and as a school governor in a deprived neighbourhood. William has held public office as a parish and district councillor. 

From 2006 to 2010, William supervised large insurers and investment firms at the UK FSA where he was also asked to lead an emergency credit institutions team during the Global Financial Crisis. In 2010, he moved to become Head of Risk at the Central Bank of Ireland where he reinvented Irish financial services supervisory processes as the country recovered from the Euro crisis. He subsequently played an influential role in the operational design of the European Central Bank's banking union; it adopted the software that he had designed to implement its supervisory operating model. 

Gillian oversees the prudential and conduct Policy and Supervisory functions of the Commission. She takes a keen interest in supervisory technology and supports initiatives to allow the Commission to more effectively regulate firms using new data-driven technology. Gillian is playing a leading role in the Commission’s Digital Finance Initiative and values engagement with stakeholders.

Gillian joined the Commission in July 2014, initially as Director of Fiduciary and Innovations. Since then Gillian has held a number of positions including as Director of Investment, Fiduciary and Pensions. Gillian, on behalf of the Commission, is an active participant in the International Organization of Securities Commissions (IOSCO), and the Group of International Finance Centre Supervisors (GIFCS). 

Gillian joined the Commission from the UK Financial Conduct Authority (FCA; and formerly the Financial Services Authority), where she regulated a wide range of financial institutions. Gillian started her career in the Cabinet Office, where she was a Minister’s Private Secretary and Policy Officer. Gillian graduated from Exeter University where she read History and Politics.

Katherine was appointed as Deputy Director General in December 2022 and is responsible for finance, IT, risk, and financial stability. Katherine joined the Commission in June 2016 as Chief Risk Officer from Deloitte in London where she provided prudential and risk support to a wide range of FCA regulated firms; this included working with firms following regulatory issues. Prior to this, Katherine spent 5 years at the UK’s Financial Conduct Authority (FCA and previously the Financial Services Authority) where she supervised a wide range of firms including FTSE Listed companies. Katherine has extensive experience in all aspects of prudential supervision and was key in helping the FCA to implement CRD IV for its firms. Katherine joined the FSA from a firm providing internal audit services for Building Societies and other mutual organisations. Katherine is a Fellow of the Association of Chartered Certified Accountants.

Jeremy Quick is the Director of Banking Resolution and a member of the Executive Committee of the International Association of Insurance Supervisors. He was previously the Director of Banking and Insurance and Chair of the Group of International Insurance Centre Supervisors (GIICS).

Simon worked for almost 30 years in law enforcement, where he covered several teams investigating serious criminal offences; both domestically and internationally.

During his career he led many frontline teams including the Fraud and International Team for the Bailiwick of Guernsey, covering MTIC and revenue fraud. In 2009, Simon returned to the Financial Investigation Unit where he was the Senior Manager in charge of the Money Laundering and Confiscation Team. His last role in law enforcement was as Senior Manager in charge of the Financial Intelligence Service which was predominantly responsible for the acceptance and evaluation of SAR data and case development. Simon joined the Commission in July 2013 as Director of Enforcement. Since joining the Commission, Simon has overseen the development of the Enforcement Division which enables the Commission to enforce its regulations where appropriate and reasonable to do so. Simon is also a member of Committee 4 and the Screening Group for the International Organization of Securities Commissions (IOSCO); an association of organisations that regulate the world's securities and futures markets.

Fiona joined the Commission in May 1999 as an analyst in the Investment Business Division. She was promoted to senior analyst in 2002. In January 2005, she took up the role of Assistant Director in the Fiduciary Division and held the position as a Deputy Director in the Fiduciary Supervision and Policy Division from April 2011 to October 2014. She was appointed Director in November 2014. Fiona graduated from the University of Wales, Cardiff, with a degree in Economics and Social Studies. She is a member of the Chartered Institute for Securities & Investment.

Alice joined the Commission in March 2014. As Director of External Affairs and Commission Secretary, she supports the work of the Commission by advising the Chairman, Director General and board on matters of corporate governance, overseeing the Commission’s Senior Decision Makers who are appointed to determine enforcement cases, coordinating the Commission’s liaison and consultation with government, industry and other key stakeholders as well as leading and developing the Commission’s policy and approach to human resources and data protection. Before becoming a Director at the Commission, Alice spent seven years in the Fiduciary Division of the Commission where she assisted in the embedding of PRISM for the supervision of trust and corporate service providers.

Prior to joining the Commission, Alice worked in London at a charity providing legal advice to disabled people, and at a firm specialising in the fields of community care and education law. Alice is a graduate of the University of Exeter and completed the Graduate Diploma in Law and Legal Practice Course at the College of Law, London.

Alice is a member of the Guernsey Employment and Discrimination Tribunal and a member of the Office of the Data Protection Authority's guidance advisory panel. 

Caroline joined the Commission in February 2008 as Assistant Director in the Insurance Division, and was appointed Deputy Director in the Banking and Insurance Division in October 2011. She moved to the Authorisations and Innovation Division in February 2020 and was appointed co-Director in October 2021. Caroline graduated in Economics from the University of Manchester and completed a graduate training programme with a UK insurer. She then became a Loss Adjuster before moving to Guernsey in 1994 and spending 14 years in the local insurance industry prior to joining the Commission. Caroline is a former President of the Insurance Institute of Guernsey and chaired the Captive Insurer Drafting Group of the International Association of Insurance Supervisors which published the Application Paper on the Regulation and Supervision of Captive Insurers in November 2015. 

Alison joined the Commission in October 2010 as an Analyst in the Investment Business Division and was promoted to Senior Analyst in December 2013. In May 2015 she took up the role of Assistant Director in the Authorisations Unit, and was promoted to Deputy Director in November 2016. In September 2018, Alison transferred as Deputy Director to the newly formed Investment, Fiduciary and Pension Division where she headed up the supervisory team. She was promoted to co-Director of the Authorisations and Innovation Division in October 2021.

Prior to joining the Commission Alison worked in the Bailiwick’s financial services sector for over 15 years. Alison graduated from the University of Durham with a degree in Geography, and also holds a degree in Financial Services from UMIST.

Nick was appointed as Director of Investment, Fiduciary and Pension Supervision in January 2026. Nick joined the Commission in 2002 and specialised in prudential and conduct supervision of the investment sector until he took up the position of Deputy Director of the Financial Crime Division in October 2015, where he was responsible for AML/CFT/CPF supervision and policy development. In particular, he was part of the small Bailiwick leadership team which ran the National Risk Assessments in 2019 and 2023 and the successful Moneyval inspection in 2024.

Nick holds a Master’s Degree with Distinction in Financial Crime and Compliance in Digital Societies from the University of Manchester and is a Chartered Fellow of the Securities and Investment Institute and a Fellow of the International Compliance Association.

Martin joined the Commission in March 2013 as Policy Advisor in the Banking and Insurance Division, became Deputy Director in the Investment, Fiduciary and Pension Division in December 2018 and was appointed Director of Banking and Insurance Supervision in January 2026. Prior to this, Martin spent 10 years at the Bermuda Monetary Authority where he supervised a wide range of firms and implemented prudential supervisory policy. Martin began his career in accountancy and audit practice, in Scotland and Bermuda. Martin is a member of the Institute of Chartered Accountants of Scotland.

Conor joined the Commission in May 2016 as a Risk Analyst and was promoted to Assistant Director in the Risk Unit in December of the same year. In February 2019, he took up the role of Deputy Director in the Risk and Operations Division and was given additional responsibilities as Head of Projects and Innovation in September 2022, and Head of the Technology Innovation Unit in March 2025.  As Director of Technology, he leads the technology and project related functions of the Commission and directs work relating to the internal optimisation of newer technologies to increase efficiency and effectiveness. Before joining the Commission, Conor worked at an international level as an academic and consultant sports scientist. Conor graduated from Nottingham Trent University, with a degree in Sport Administration and Science, holds an MSc from Loughborough University and a PhD from Manchester Metropolitan University.